Financier Bernie Madoff, who was sentenced to 150 years in jail after pleading guilty to organising the world's biggest investing scam, has died in prison aged 82. Madoff died at the Federal Medical Center in Butner, North Carolina from natural causes, the Associated Press reported. His death comes just over a year after he asked a US judge for early release, saying he was suffering from terminal kidney failure and other health problems and had 18 months to live.